WO2015162957A1 - 車両用パーキングロック装置 - Google Patents

車両用パーキングロック装置 Download PDF

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Publication number
WO2015162957A1
WO2015162957A1 PCT/JP2015/051977 JP2015051977W WO2015162957A1 WO 2015162957 A1 WO2015162957 A1 WO 2015162957A1 JP 2015051977 W JP2015051977 W JP 2015051977W WO 2015162957 A1 WO2015162957 A1 WO 2015162957A1
Authority
WO
WIPO (PCT)
Prior art keywords
solenoid valve
oil passage
hydraulic actuator
parking
accumulator
Prior art date
Application number
PCT/JP2015/051977
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
靖 野崎
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to CN201580015320.7A priority Critical patent/CN106104103B/zh
Priority to JP2016514739A priority patent/JP6146728B2/ja
Publication of WO2015162957A1 publication Critical patent/WO2015162957A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/22—Locking of the control input devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms

Definitions

  • an automatic transmission that shifts and outputs a driving force from a driving source includes a hydraulic actuator that can restrain rotation of a parking gear connected to a wheel, and a hydraulic circuit that controls the operation of the hydraulic actuator.
  • the present invention relates to a parking lock device for a vehicle.
  • Japanese Patent Application Laid-Open Publication No. 2004-228561 discloses a technique for operating a parking lock by supplying hydraulic pressure to a hydraulic actuator.
  • the parking lock when the car is washed while being pushed and moved by the conveyor, the parking lock must be released with the engine stopped.
  • the driver may operate the switch for canceling the operation of the automatic parking lock and then stop the engine, thereby discharging the hydraulic pressure accumulated in the accumulator so that the automatic parking lock does not operate.
  • the present invention has been made in view of the above circumstances, and an object thereof is to enable cancellation of an automatic parking lock without adding a solenoid valve.
  • a hydraulic actuator that shifts and outputs a driving force from a driving source can restrain the rotation of a parking gear connected to a wheel, and the hydraulic actuator And a hydraulic circuit for controlling the operation of the vehicle, wherein the hydraulic circuit is an unlocking oil chamber formed at one end of the hydraulic actuator to drive the hydraulic actuator to a parking lock release position.
  • a lock oil chamber formed at the other end of the hydraulic actuator to drive the hydraulic actuator to a parking lock operating position, an accumulator accumulating by line pressure, and supplying a line pressure to the unlock oil chamber A first oil passage, a second oil passage for supplying a line pressure to the lock oil chamber, and the hydraulic actuator A third oil passage that supplies the accumulated oil pressure to the lock oil chamber; a first solenoid valve disposed in the second oil passage; a second solenoid valve disposed in the third oil passage;
  • the first solenoid valve is a normally closed type, and the second solenoid valve is a normally open type, comprising a fourth oil passage that connects the accumulator to the back chamber, and a switching valve disposed in the fourth oil passage.
  • the normally closed first solenoid valve when the automatic transmission cancels the operation of the automatic parking lock in a state other than the P range, the normally closed first solenoid valve is excited.
  • a vehicle parking lock device having a second characteristic that the second solenoid valve of the normally open type is opened by being excited and closed.
  • the first lock oil chamber 29A and the second lock oil chamber 29B of the embodiment correspond to the lock oil chamber of the present invention, and the first unlock oil chamber 30A and the second unlock oil of the embodiment.
  • the oil chamber 30B corresponds to the unlocking oil chamber of the present invention
  • the solenoid valve 33B of the embodiment corresponds to the first solenoid valve of the present invention
  • the solenoid valve 33C of the embodiment corresponds to the second solenoid of the present invention.
  • the second parking ball valve 35 of the embodiment corresponds to the switching valve of the present invention
  • the oil passage L2 and the oil passage L4 of the embodiment correspond to the first oil passage of the present invention.
  • the oil passage L5 of the embodiment corresponds to the second oil passage of the present invention
  • the oil passage L8 of the embodiment corresponds to the third oil passage of the present invention
  • the oil passage L10 of the embodiment corresponds to the fourth oil of the present invention. Corresponds to the road.
  • an automatic transmission that shifts and outputs a driving force from a driving source controls a hydraulic actuator capable of restraining rotation of a parking gear connected to a wheel, and an operation of the hydraulic actuator. And a hydraulic circuit.
  • the parking lock is released by supplying the line pressure to the unlocking oil chamber of the hydraulic actuator, and at the same time, the line pressure is accumulated in the accumulator.
  • the normally closed first solenoid valve is excited and opened.
  • the hydraulic pressure accumulated in the accumulator can be released via the switching valve, and the normally open second solenoid valve is excited and closed, so that the line pressure acts on the oil chamber for locking the hydraulic actuator.
  • the hydraulic actuator can be held in the unlocked state.
  • FIG. 1 is a diagram showing the structure of a parking lock device.
  • FIG. 2 is a hydraulic circuit diagram of the parking lock device.
  • FIG. 3 is a hydraulic circuit diagram (parking lock release state) in a range other than the P range.
  • FIG. 4 is a hydraulic circuit diagram in the P range (parking lock operating state).
  • FIG. 5 is a hydraulic circuit diagram (automatic parking lock operation state) when the engine is OFF.
  • FIG. 6 is a hydraulic circuit diagram (accumulator released state) when the automatic parking lock cancel switch is ON.
  • First embodiment is a hydraulic circuit diagram of the parking lock device.
  • FIG. 3 is a hydraulic circuit diagram (parking lock release state) in a range other than the P range.
  • FIG. 4 is a hydraulic circuit diagram in the P range (parking lock operating state).
  • FIG. 5 is a hydraulic circuit diagram (automatic parking lock operation state) when the engine is OFF.
  • FIG. 6 is a hydraulic circuit diagram (accumulator released state) when the automatic parking lock cancel switch is
  • the parking gear 12 is fixed to the transmission shaft 11 of the automatic transmission, and the locking claw 14a provided at one end of the parking pole 14 pivotally supported by the support shaft 13 is disengaged from the tooth groove 12a of the parking gear 12. It is biased by a spring 15 in the direction.
  • One end of a parking rod 18 is pivotally supported by a pin 19 on a detent plate 17 pivotally supported on a support shaft 16, and a cone-shaped cam 20 provided on the other end of the parking rod 18 is provided on the other end of the parking pole 14.
  • a detent roller 22 provided at one end of the swingable arm 21 is urged by a spring 23 in a direction to engage with one of the two recesses 17 a and 17 b of the detent plate 17.
  • a link 24 pivotally supported by the support shaft 16 and swinging integrally with the detent plate 17 is connected to the hydraulic actuator 25.
  • the hydraulic actuator 25 includes a piston 27 slidably fitted to the cylinder 26, and a link 24 is connected to the piston 27 via a pin 28.
  • a first lock oil chamber 29 ⁇ / b> A and a second lock oil chamber 29 ⁇ / b> B for driving the piston 27 in the direction in which the parking lock operates (rightward) are formed on the left end side of the cylinder 26.
  • the hydraulic circuit 31 includes a first parking inhibit valve 32 in an oil passage L2 that branches from an oil passage L1 to which line pressure is supplied from a hydraulic pump (not shown) and is connected to the first unlocking oil chamber 30A of the hydraulic actuator 25.
  • An on / off type solenoid valve 33A is interposed in an oil passage L3 that branches from the oil passage L1 and connects to the first parking inhibit valve 32.
  • the solenoid valve 33A is a normally closed type. When the solenoid valve 33A is closed due to demagnetization, the spool of the first parking inhibit valve 32 moves to the left, and the line is connected to the first unlocking oil chamber 30A so as to drive the hydraulic actuator 25 to the unlock position. Supply pressure.
  • a second parking inhibit valve 34 is interposed in an oil passage L4 branched from the oil passage L1 and connected to the second unlocking oil chamber 30B of the hydraulic actuator 25, and the second parking inhibit valve 34 includes an automatic transmission.
  • the clutch pressure is supplied.
  • the clutch pressure rises when the automatic transmission is in the D range (drive range) and R range (reverse range), which causes the spool of the second parking inhibit valve 34 to move to the left and drive the hydraulic actuator 25 to the unlock position.
  • the line pressure is supplied to the second unlocking oil chamber 30B.
  • the clutch pressure does not rise when the automatic transmission is in the N range (neutral range) and the P range (parking range). In this case, the spool of the second parking inhibit valve 34 moves to the right, and the second pressure of the hydraulic actuator 25 is increased. The supply of line pressure to the unlocking oil chamber 30B is shut off.
  • a second parking ball valve 35 is interposed in an oil passage L5 branched from the oil passage L1 and connected to the first lock oil chamber 29A of the hydraulic actuator 25.
  • the second parking ball valve branches off from the oil passage L1.
  • On / off type solenoid valve 33 ⁇ / b> B is interposed in oil passage L ⁇ b> 6 connected to 35.
  • the solenoid valve 33B is a normally closed type. When the solenoid valve 33B is opened by excitation, the spool of the second parking ball valve 35 moves to the left, and the line pressure is applied to the first lock oil chamber 29A to drive the hydraulic actuator 25 to the lock position. Supply.
  • An accumulator 37 is connected to an oil passage L7 connected to the oil passage L1 via a check valve 36.
  • a first parking ball valve 38 is interposed in an oil passage L8 branched from the oil passage L7 and connected to the second locking oil chamber 29B of the hydraulic actuator 25.
  • the first parking ball valve branches off from the oil passage L7.
  • An on / off type solenoid valve 33C is interposed in the oil passage L9 connected to 38.
  • the solenoid valve 33C is a normally open type. When the solenoid valve 33C is opened due to demagnetization, the spool of the first parking ball valve 38 moves to the left, and the second lock oil chamber 29B has a line pressure or The accumulated hydraulic pressure is supplied to the accumulator 37.
  • the second parking ball valve 35 is interposed in an oil passage L10 branched from the oil passage L7 and connected to the back chamber 37a of the accumulator 37, and the solenoid valve 33B is opened to spool the second parking ball valve 35. Moves to the left, the accumulator 37 is connected to the back chamber 37a.
  • the normally closed solenoid valve 33A is demagnetized and closed, so that the spool of the first parking inhibit valve 32 moves to the left, and the first unlocking oil chamber of the hydraulic actuator 25 via the oil passage L2. Line pressure is supplied to 30A. Further, since the clutch pressure disappears in the N range, the spool of the second parking inhibit valve 34 moves to the right, and the supply of the line pressure to the second unlocking oil chamber 30B of the hydraulic actuator 25 is shut off.
  • the line pressure is supplied to the first unlocking oil chamber 30A of the hydraulic actuator 25, and the line pressure is not supplied to the first locking oil chamber 29A and the second locking oil chamber 29B.
  • the hydraulic actuator 25 is unlocked, the parking lock is released, and the accumulator 37 is accumulated.
  • the solenoid valve 33A when the shift lever is in the P range with the engine running, the solenoid valve 33A is excited and opened, contrary to when the shift lever is in a range other than the P range.
  • the solenoid valve 33C is demagnetized and opened by exciting the valve.
  • the solenoid valve 33B opens, the spool of the second parking ball valve 35 moves to the left, and the line pressure is supplied to the first lock oil chamber 29A of the hydraulic actuator 25 via the oil passage L5. Since L10 connecting the accumulator 37 and the back chamber 37a communicates via the second parking ball valve 35, the hydraulic pressure accumulated in the accumulator 37 is released to the back chamber 37a. Further, the solenoid valve 33C is demagnetized and opened, whereby the first parking ball valve 38 is opened, and the line pressure is supplied to the second lock oil chamber 29B of the hydraulic actuator 25.
  • the line pressure is supplied to the first lock oil chamber 29A and the second lock oil chamber 29B of the hydraulic actuator 25, and the first unlock oil chamber 30A and the second unlock oil. Since the line pressure is not supplied to the chamber 30B, the hydraulic actuator 25 is locked, the parking lock is activated, and the accumulator 37 is released.
  • an automatic parking lock is activated to prevent unintended movement of the vehicle. Since the hydraulic pump is stopped by stopping the engine and the line pressure and the clutch pressure disappear, the automatic parking lock is executed using the hydraulic pressure accumulated in the accumulator 37.
  • the normally closed solenoid valve 33A when the ignition switch is turned off, the normally closed solenoid valve 33A is demagnetized and closed, the normally closed solenoid valve 33B is demagnetized and closed, and the normally open type is closed.
  • the solenoid valve 33C is demagnetized and opened.
  • the hydraulic pressure accumulated in the accumulator 37 is locked to the second lock of the hydraulic actuator 25 via the first parking ball valve 38. It is supplied to the oil chamber 29B.
  • the solenoid valve 33A is closed, the spool of the first parking inhibit valve 32 moves to the right, and the hydraulic pressure in the first unlocking oil chamber 30A of the hydraulic actuator 25 is drained through the first parking inhibit valve 32.
  • the clutch pressure disappears, the spool of the second parking inhibit valve 34 moves to the right, and the hydraulic pressure in the second unlocking oil chamber 30B of the hydraulic actuator 25 is drained through the second parking inhibit valve 34.
  • the hydraulic actuator 25 is locked by the hydraulic pressure of the accumulator 37 supplied to the second lock oil chamber 29B, and the automatic parking lock is activated.
  • the parking lock when the car is washed while being pushed and moved by a conveyor, the parking lock must be released with the engine stopped.
  • the automatic parking lock when the engine is stopped by turning off the ignition switch while the shift lever is put in a range other than the P range, the automatic parking lock is performed by the hydraulic pressure accumulated in the accumulator 37 as described in FIG. Although it operates, by turning on an automatic parking lock cancel switch (not shown) before stopping the engine, the automatic parking lock can be prohibited and car washing can be performed without any trouble.
  • the automatic parking lock cancel switch when the automatic parking lock cancel switch is turned on with the shift lever in the N range other than the P range (see FIG. 3), as shown in FIG.
  • the second parking ball valve 35 By exciting and opening the valve, the second parking ball valve 35 is opened, and the accumulator 37 is communicated with the back chamber 37a via the second parking ball valve 35, and the hydraulic pressure accumulated in the accumulator 37 is released.
  • the oil path L5 is communicated by the left movement of the spool of the second parking ball valve 35, and the line pressure is supplied to the first lock oil chamber 29A of the hydraulic actuator 25, but the first unlock oil chamber 30A. Since the leftward pressing force due to the hydraulic pressure supplied to the hydraulic pressure is superior to the rightward pressing force due to the hydraulic pressure supplied to the first lock oil chamber 29A, the hydraulic actuator 25 does not shift to the locked state.
  • the automatic parking lock does not operate even if the ignition switch is turned off thereafter.
  • the operation of the automatic parking lock can be canceled using the solenoid valve 33B and the solenoid valve 33C for supplying hydraulic pressure to the first lock oil chamber 29A and the second lock oil chamber 29B of the hydraulic actuator 25.
  • the structure of the hydraulic circuit 31 is not complicated.
  • the oil passage L10 is indirectly connected / blocked via the second parking ball valve 35, but it may be indirectly connected / blocked by the solenoid valve 33B.
  • the oil passage L8 is indirectly connected / blocked via the first parking ball valve 38, but it may be indirectly connected / blocked by the solenoid valve 33C.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Control Of Transmission Device (AREA)
PCT/JP2015/051977 2014-04-24 2015-01-26 車両用パーキングロック装置 WO2015162957A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580015320.7A CN106104103B (zh) 2014-04-24 2015-01-26 车辆用驻车锁定装置
JP2016514739A JP6146728B2 (ja) 2014-04-24 2015-01-26 車両用パーキングロック装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014090147 2014-04-24
JP2014-090147 2014-04-24

Publications (1)

Publication Number Publication Date
WO2015162957A1 true WO2015162957A1 (ja) 2015-10-29

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PCT/JP2015/051977 WO2015162957A1 (ja) 2014-04-24 2015-01-26 車両用パーキングロック装置

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JP (1) JP6146728B2 (zh)
CN (1) CN106104103B (zh)
WO (1) WO2015162957A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018168905A (ja) * 2017-03-29 2018-11-01 本田技研工業株式会社 油圧制御装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106523698B (zh) * 2016-12-30 2018-05-11 盛瑞传动股份有限公司 一种p挡锁止控制装置
CN110341676A (zh) * 2019-08-01 2019-10-18 泸州容大智能变速器有限公司 一种自动变速箱内置电子驻车控制系统及其控制方法
CN111075925B (zh) * 2019-12-30 2021-10-26 宁波吉利汽车研究开发有限公司 液压控制驻车机构、控制方法及车辆

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0463750A (ja) * 1990-06-29 1992-02-28 Mazda Motor Corp 自動変速機のパーキング装置
JP2003214538A (ja) * 2001-11-23 2003-07-30 Daimler Chrysler Ag 自動車の自動変速装置のための作動装置
JP2010210021A (ja) * 2009-03-10 2010-09-24 Aisin Aw Co Ltd 自動変速機の油圧制御装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201507638U (zh) * 2009-09-15 2010-06-16 上海华普汽车有限公司 混合动力变速箱停车锁止机构的操纵装置
CN101947953A (zh) * 2010-09-21 2011-01-19 上海中科深江电动车辆有限公司 一种电动车液压自动换挡及驻车控制系统
DE102011105068A1 (de) * 2011-06-21 2012-07-05 Daimler Ag Kraftfahrzeugparksperrenvorrichtung mit zumindest einem Verriegelungselement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0463750A (ja) * 1990-06-29 1992-02-28 Mazda Motor Corp 自動変速機のパーキング装置
JP2003214538A (ja) * 2001-11-23 2003-07-30 Daimler Chrysler Ag 自動車の自動変速装置のための作動装置
JP2010210021A (ja) * 2009-03-10 2010-09-24 Aisin Aw Co Ltd 自動変速機の油圧制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018168905A (ja) * 2017-03-29 2018-11-01 本田技研工業株式会社 油圧制御装置

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Publication number Publication date
JP6146728B2 (ja) 2017-06-14
JPWO2015162957A1 (ja) 2017-04-13
CN106104103B (zh) 2018-03-27
CN106104103A (zh) 2016-11-09

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